Method of making hollow metal rods.



' LLUYD. ME 0 KING HOLLOW MBT-AL 800%. v r 10H FILED 13.110,14, 1914.

Patentd Feb. 211915 @maar ing at 26 Alma street,

'unirse sain ramena euries.l

FREDERIC LLOYD, 0F SHEFF''ELD, ENGLANB.

. nm-Hon or Maxine nonnow'mnren lmais.

Menem.

To all whom "z'maiy concern: v

Be it known t at l, FREDERIC LLOYD, a subject of the King of Great Britain, resid- Sheiield, England, have invented new and useful lmprovements in Methods of Making Hollow Metal Rods,v of which the following iis a specification.

' In the manufacture of hollow metal rods and the vlike a central hole is formed in a x billet-or ingot and sand or similar material is run into the hole'and is retained in the hole by plugging its ends. The billet or ingot is tlien.rolled to the required size. It

i end of the in practice that vthe metal at each billet or ingot is wasted; this waste I have discovered may be prevented if the plugs are dispensed with.

According to this invention the hole in the billet or ingot is completely filled with sand, which is retained in it by metal caps secured to the billet or ingot preferably by welding. s

The drawing illustrates a billet or ingot having caps secured to it.

is found a is the billet having a central hole b and specication of Letters retent.

' one cap is welded to the billet,

c c are caps and closing the ends sand in it. The caps are trically -welded to the billet, and in practice and after the.

rammed Feine, 1915.

' Application iley Decemucr is, im. aerial o. 811,50:

which are' secured to the billet of the hole b retain the preferably elecl or ingot is rolled or reduced to the required size.

What I claim isf- 4 The herein described method of'making a hollow metal rod, which consists in vcom-- pletely filling thev hole of a hollow ingot or billet with sand-retaining the sand in the hole by'xnetal caps applied to the outside only ofthe billet at opposite ends of the hole and then reducing the billet or ingot to the required size. l

I FREDERIC LLOYD. Witnesses:

W. PEncY CARPMAEL,

JOHN HL WHITEHEAD. 

